Hemorrhoids are the most common anal hemorrhoids clinically, with a high incidence rate. Hemorrhoids mainly present with the following symptoms: The first is the most common symptom, which is bleeding in the stool, painless, intermittent, and bright red blood after defecation, which is a characteristic of hemorrhoids. 2. Defecation may be accompanied by pain during defecation, burning pain in the anus, and falling pain. 3. Prolapse of hemorrhoids, which is mainly a symptom of internal hemorrhoids or mixed hemorrhoids in the middle and late stages. 4. Moisture around the anus. 5. Anal itching. 6. Rectal pain. Anorectal pain is mainly a symptom of external hemorrhoids. In mild cases, there will be a feeling of fullness and falling, while in severe cases, it will be painful due to heavy hemorrhoids. The harm of hemorrhoids is common in the following points: 1. Hemorrhoids can cause anemia. Repeated bleeding during stool may cause no symptoms or mild symptoms in the early stage. If the anemia is severe or progresses rapidly, systemic manifestations of anemia may appear, such as pale complexion, fatigue, palpitations, shortness of breath, dizziness, and edema. 2. Hemorrhoids can cause anal dysfunction, anal contracture, difficulty defecation, anal incontinence and other symptoms. When the above symptoms occur, patients will worry about pain and fear of defecation, causing constipation and great psychological pressure. 3. Hemorrhoid rupture and bleeding can easily lead to bacterial infection. For example, hemorrhoids in women can also induce gynecological inflammation. 4. Delayed treatment of hemorrhoids, on the basis of bleeding and infection, can lead to other anorectal diseases such as anal fissure, perianal abscess, anal fistula and even malignant transformation. Therefore, hemorrhoids should be detected and treated early without delay.